Question

calculati: 4km+200m-3hm-45000cm+17dam+200000mm-38000dm=?dam

Answer 1

4 km  + 200 m - 3 hm - 45000 cm + 17 dam + 200000 mm - 38000 dm = ? dam
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· 4 km = 400 dam
· 200 m = 20 dam
· 3 hm = 30 dam
· 45000 cm = 45 dam
· 17 dam = 17 dam 
· 200000 mm = 20 dam
· 38000 dm = 380 dam
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⇒ 400 dam + 20 dam - 30 dam - 45 dam + 17 dam + 20 dam - 380 dam = 

⇒ 420 dam - 30 dam - 45 dam + 17 dam + 20 dam - 380 dam
 
⇒ 390 dam - 45 dam + 17 dam + 20 dam - 380 dam

⇒ 345 dam  + 17 dam + 20 dam - 380 dam

⇒ 362 dam + 20 dam - 380 dam

⇒ 382 dam - 380 dam

⇒ 2 dam